Pre- Namami Gange: Namami Gange: Programme features: Ganga Action Plan (GAP)-I launched in 1986. Plan involved pollution abatement measures in 25 class I towns in three states of Uttar Pradesh, Bihar and West Bengal. GAP I was completed in 2000. GAP II was approved in phases, from 1993 to 1996. For reducing pollution load on the river, treatment of four major tributaries of the Ganga—Yamuna.